# September Sudokus #165-#168

### By: Dan LeKander

Volume 18, Issue 9, September 2023

Kick off the fall with a commitment to improve your Sudoku skills.

### Clueless?

We start with a Sudoku puzzle in progress, where it appears that there are no more obvious or not-so-obvious clues.  Can you find the hidden clue in Puzzle #165?

(The answer follows the conclusion of Puzzle #168, the feature puzzle for this month)

Simply a Logic Puzzle, Difficult rating … 3/10
(Rating based on puzzles not requiring advanced techniques)

### Impossible to solve?

Impossible?  No.  Difficult?  Extremely.   Puzzle #167 will be challenge for you.  Advanced Techniques (Steps 6 and/or 7) are required.  Difficult rating 7/10.

Feature Puzzle

Difficult rating … 4/10
(Rating based on puzzles requiring advanced techniques)

### PUZZLE PREPARATION

Prior to utilizing techniques 1-8, complete the 5 Steps of Puzzle Preparation …

1. FILL IN DATA FROM OBSERVATIONS
4. MARK UNSOLVED CELLS WITH OPTIONS THAT CANNOT EXIST IN THOSE CELLS
5. FILL IN THE OPTIONS FOR THE UNSOLVED CELLS

(Hint … If you need a refresher on Step 6, please click the April 2023 issue)

May the gentle winds of Sudoku be at your back,

Dan LeKander

Clue for Puzzle #165 . . .  did you find the clue?  If not, read on.
In box one a 7 can only exist as an option in C1R1 or C1R2; therefore, a 7 cannot exist an option in C1R5.   We see that a 7 cannot exist as an option in C3R5 or C5R5; therefore, C7R5=7.
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Important Editor's Note

Dan would like to hear more from his readers, such as questions, comments & suggestions - info@thousandislandslife.com.  We will forward this to Dan, and he will contact you directly.  Thank you.

Recently someone wrote to ask how to fill them out online. Unfortunately, you need to print them yourself,  but that is easy to do and I know you will have just as much fun. Also you can use a grid sheet and copy numbers onto the grid.

And, if you have not already done so, I suggest you purchase Dan’s book: “3 Advanced Sudoku Techniques, That Will Change Your Game Forever!” Purchase of a book includes a 50-page blank grid pad, 33 black and two green tokens. The book is available by contacting info@thousandislandslife.com.

Be sure to read the TI Life's review of Dan's book by Jesse Kahn published in Jun 2015.

Posted in: Volume 18, Issue 9, September 2023, Sports